31013871

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{4091}}^1$

素因数の和:4139

約数の個数: 24

約数和(自身を含む): 49889664

約数和(自身を除く): 18875793

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 4091, 7581, 12273, 28637, 77729, 85911, 233187, 544103, 1476851, 1632309, 4430553, 10337957, 31013871]

約数ペア:

[(1, 31013871), (3, 10337957), (7, 4430553), (19, 1632309), (21, 1476851), (57, 544103), (133, 233187), (361, 85911), (399, 77729), (1083, 28637), (2527, 12273), (4091, 7581)]